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<article id="content">
<header>
<h1 class="title">Module <code>py3dtilers.IfcTiler.ifcObjectGeom</code></h1>
</header>
<section id="section-intro">
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python"># -*- coding: utf-8 -*-
import logging
import time
import numpy as np
import ifcopenshell
from py3dtiles import GlTFMaterial
from ..Common import Feature, FeatureList, TreeWithChildrenAndParent
from ifcopenshell import geom
from py3dtiles import BatchTableHierarchy


class IfcObjectGeom(Feature):
    def __init__(self, ifcObject, ifcGroup=None, with_BTH=False):
        super().__init__(ifcObject.GlobalId)
        self.ifcClass = ifcObject.is_a()
        self.material = None
        self.setBatchTableData(ifcObject, ifcGroup)
        self.has_geom = self.parse_geom(ifcObject)
        if(with_BTH):
            self.getParentsInIfc(ifcObject)

    def hasGeom(self):
        return self.has_geom

    def set_triangles(self, triangles):
        self.geom.triangles[0] = triangles

    def getParentsInIfc(self, ifcObject):
        self.parents = list()
        while(ifcObject):
            ifcParent = None
            if(hasattr(ifcObject, &#34;ContainedInStructure&#34;)):
                if(ifcObject.ContainedInStructure):
                    ifcParent = ifcObject.ContainedInStructure[0].RelatingStructure
            elif(hasattr(ifcObject, &#34;Decomposes&#34;)):
                if(len(ifcObject.Decomposes) &gt; 0):
                    ifcParent = ifcObject.Decomposes[0].RelatingObject

            if(ifcParent):
                self.parents.append({&#39;id&#39;: ifcParent.GlobalId, &#39;ifcClass&#39;: ifcParent.is_a()})
            ifcObject = ifcParent

    def computeCenter(self, pointList):
        center = np.array([0.0, 0.0, 0.0])
        for point in pointList:
            center += np.array([point[0], point[1], 0])
        return center / len(pointList)

    def setBatchTableData(self, ifcObject, ifcGroup):
        properties = list()
        for prop in ifcObject.IsDefinedBy:
            if(hasattr(prop, &#39;RelatingPropertyDefinition&#39;)):
                if(prop.RelatingPropertyDefinition.is_a(&#39;IfcPropertySet&#39;)):
                    props = list()
                    props.append(prop.RelatingPropertyDefinition.Name)
                    for propSet in prop.RelatingPropertyDefinition.HasProperties:
                        if(propSet.is_a(&#39;IfcPropertySingleValue&#39;)):
                            if(propSet.NominalValue):
                                props.append([propSet.Name, propSet.NominalValue.wrappedValue])
                    properties.append(props)
        batch_table_data = {
            &#39;classe&#39;: self.ifcClass,
            &#39;group&#39;: ifcGroup,
            &#39;name&#39;: ifcObject.Name,
            &#39;properties&#39;: properties
        }
        super().set_batchtable_data(batch_table_data)

    def getIfcClasse(self):
        return self.ifcClasse

    def parse_geom(self, ifcObject):
        if (not(ifcObject.Representation)):
            return False

        try:
            settings = geom.settings()
            settings.set(settings.USE_WORLD_COORDS, True)  # Translates and rotates the points to their world coordinates
            settings.set(settings.SEW_SHELLS, True)
            settings.set(settings.APPLY_DEFAULT_MATERIALS, False)
            shape = geom.create_shape(settings, ifcObject)
        except RuntimeError:
            logging.error(&#34;Error while creating geom with IfcOpenShell&#34;)
            return False

        vertexList = np.reshape(np.array(shape.geometry.verts), (-1, 3))
        indexList = np.reshape(np.array(shape.geometry.faces), (-1, 3))
        if(shape.geometry.materials):
            ifc_material = shape.geometry.materials[0]
            self.material = GlTFMaterial(rgb=[ifc_material.diffuse[0], ifc_material.diffuse[1], ifc_material.diffuse[2]],
                                         alpha=ifc_material.transparency if ifc_material.transparency else 0,
                                         metallicFactor=ifc_material.specularity if ifc_material.specularity else 1.)

        triangles = list()
        for index in indexList:
            triangle = []
            for i in range(0, 3):
                # We store each position for each triangles, as GLTF expect
                triangle.append(vertexList[index[i]])
            triangles.append(triangle)

        self.geom.triangles.append(triangles)

        self.set_box()

        return True

    def get_obj_id(self):
        return super().get_id()

    def set_obj_id(self, id):
        return super().set_id(id)


class IfcObjectsGeom(FeatureList):
    &#34;&#34;&#34;
        A decorated list of FeatureList type objects.
    &#34;&#34;&#34;

    def __init__(self, objs=None):
        super().__init__(objs)

    @staticmethod
    def create_batch_table_extension(extension_name, ids, objects):
        if extension_name == &#34;batch_table_hierarchy&#34;:
            resulting_bth = BatchTableHierarchy()
            hierarchy = TreeWithChildrenAndParent()
            parents = dict()

            for obj in objects:
                resulting_bth.add_class(obj.ifcClass, {&#39;GUID&#39;})
                if(obj.parents):
                    hierarchy.addNodeToParent(obj.id, obj.parents[0][&#39;id&#39;])
                i = 0
                for parent in obj.parents:
                    hierarchy.addNodeToParent(obj.parents[i - 1][&#39;id&#39;], obj.parents[i][&#39;id&#39;])
                    if parent[&#39;id&#39;] not in parents:
                        parents[parent[&#39;id&#39;]] = parent
                        resulting_bth.add_class(parent[&#39;ifcClass&#39;], {&#39;GUID&#39;})
                    i = i + 1

            objectPosition = {}
            for i, (obj) in enumerate(objects):
                objectPosition[obj.id] = i
            for i, (parent) in enumerate(parents):
                objectPosition[parent] = i + len(objects)

            for obj in objects:
                resulting_bth.add_class_instance(
                    obj.ifcClass,
                    {
                        &#39;GUID&#39;: obj.id
                    },
                    [objectPosition[id_parent] for id_parent in hierarchy.getParents(obj.id)]
                )
            for parent in parents.items():
                resulting_bth.add_class_instance(
                    parent[1][&#34;ifcClass&#34;],
                    {
                        &#39;GUID&#39;: parent[1][&#34;id&#34;]
                    },
                    [objectPosition[id_parent] for id_parent in hierarchy.getParents(parent[1][&#34;id&#34;])]
                )

            return resulting_bth
        else:
            return None

    @staticmethod
    def retrievObjByType(path_to_file, with_BTH):
        &#34;&#34;&#34;
        :param path: a path to a directory

        :return: a list of Obj.
        &#34;&#34;&#34;
        ifc_file = ifcopenshell.open(path_to_file)

        elements = ifc_file.by_type(&#39;IfcElement&#39;)
        nb_element = str(len(elements))
        logging.info(nb_element + &#34; elements to parse&#34;)
        i = 1
        dictObjByType = dict()
        for element in elements:
            start_time = time.time()
            logging.info(str(i) + &#34; / &#34; + nb_element)
            logging.info(&#34;Parsing &#34; + element.GlobalId + &#34;, &#34; + element.is_a())
            obj = IfcObjectGeom(element, with_BTH=with_BTH)
            if(obj.hasGeom()):
                if not(element.is_a() in dictObjByType):
                    dictObjByType[element.is_a()] = IfcObjectsGeom()
                if(obj.material):
                    obj.material_index = dictObjByType[element.is_a()].get_material_index(obj.material)
                else:
                    obj.material_index = 0
                dictObjByType[element.is_a()].append(obj)
            logging.info(&#34;--- %s seconds ---&#34; % (time.time() - start_time))
            i = i + 1
        return dictObjByType

    @staticmethod
    def retrievObjByGroup(path_to_file):
        &#34;&#34;&#34;
        :param path: a path to a directory

        :return: a list of Obj.
        &#34;&#34;&#34;
        ifc_file = ifcopenshell.open(path_to_file)

        elements = ifc_file.by_type(&#39;IfcElement&#39;)
        nb_element = str(len(elements))
        logging.info(nb_element + &#34; elements to parse&#34;)

        groups = ifc_file.by_type(&#34;IFCRELASSIGNSTOGROUP&#34;)

        dictObjByGroup = dict()
        for group in groups:
            elements_in_group = list()
            for element in group.RelatedObjects:
                if(element.is_a(&#39;IfcElement&#39;)):
                    elements.remove(element)
                    obj = IfcObjectGeom(element, group.RelatingGroup.Name)
                    if(obj.hasGeom()):
                        elements_in_group.append(obj)
            dictObjByGroup[group.RelatingGroup.Name] = elements_in_group

        elements_not_in_group = list()
        for element in elements:
            obj = IfcObjectGeom(element)
            if(obj.hasGeom()):
                elements_not_in_group.append(obj)
        dictObjByGroup[&#34;None&#34;] = elements_not_in_group

        for key in dictObjByGroup.keys():
            dictObjByGroup[key] = IfcObjectsGeom(dictObjByGroup[key])

        return dictObjByGroup</code></pre>
</details>
</section>
<section>
</section>
<section>
</section>
<section>
</section>
<section>
<h2 class="section-title" id="header-classes">Classes</h2>
<dl>
<dt id="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom"><code class="flex name class">
<span>class <span class="ident">IfcObjectGeom</span></span>
<span>(</span><span>ifcObject, ifcGroup=None, with_BTH=False)</span>
</code></dt>
<dd>
<div class="desc"><p>The base class of all object that need to be tiled, in order to be
used with the corresponding tiler.</p>
<p>:param id: given identifier</p></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">class IfcObjectGeom(Feature):
    def __init__(self, ifcObject, ifcGroup=None, with_BTH=False):
        super().__init__(ifcObject.GlobalId)
        self.ifcClass = ifcObject.is_a()
        self.material = None
        self.setBatchTableData(ifcObject, ifcGroup)
        self.has_geom = self.parse_geom(ifcObject)
        if(with_BTH):
            self.getParentsInIfc(ifcObject)

    def hasGeom(self):
        return self.has_geom

    def set_triangles(self, triangles):
        self.geom.triangles[0] = triangles

    def getParentsInIfc(self, ifcObject):
        self.parents = list()
        while(ifcObject):
            ifcParent = None
            if(hasattr(ifcObject, &#34;ContainedInStructure&#34;)):
                if(ifcObject.ContainedInStructure):
                    ifcParent = ifcObject.ContainedInStructure[0].RelatingStructure
            elif(hasattr(ifcObject, &#34;Decomposes&#34;)):
                if(len(ifcObject.Decomposes) &gt; 0):
                    ifcParent = ifcObject.Decomposes[0].RelatingObject

            if(ifcParent):
                self.parents.append({&#39;id&#39;: ifcParent.GlobalId, &#39;ifcClass&#39;: ifcParent.is_a()})
            ifcObject = ifcParent

    def computeCenter(self, pointList):
        center = np.array([0.0, 0.0, 0.0])
        for point in pointList:
            center += np.array([point[0], point[1], 0])
        return center / len(pointList)

    def setBatchTableData(self, ifcObject, ifcGroup):
        properties = list()
        for prop in ifcObject.IsDefinedBy:
            if(hasattr(prop, &#39;RelatingPropertyDefinition&#39;)):
                if(prop.RelatingPropertyDefinition.is_a(&#39;IfcPropertySet&#39;)):
                    props = list()
                    props.append(prop.RelatingPropertyDefinition.Name)
                    for propSet in prop.RelatingPropertyDefinition.HasProperties:
                        if(propSet.is_a(&#39;IfcPropertySingleValue&#39;)):
                            if(propSet.NominalValue):
                                props.append([propSet.Name, propSet.NominalValue.wrappedValue])
                    properties.append(props)
        batch_table_data = {
            &#39;classe&#39;: self.ifcClass,
            &#39;group&#39;: ifcGroup,
            &#39;name&#39;: ifcObject.Name,
            &#39;properties&#39;: properties
        }
        super().set_batchtable_data(batch_table_data)

    def getIfcClasse(self):
        return self.ifcClasse

    def parse_geom(self, ifcObject):
        if (not(ifcObject.Representation)):
            return False

        try:
            settings = geom.settings()
            settings.set(settings.USE_WORLD_COORDS, True)  # Translates and rotates the points to their world coordinates
            settings.set(settings.SEW_SHELLS, True)
            settings.set(settings.APPLY_DEFAULT_MATERIALS, False)
            shape = geom.create_shape(settings, ifcObject)
        except RuntimeError:
            logging.error(&#34;Error while creating geom with IfcOpenShell&#34;)
            return False

        vertexList = np.reshape(np.array(shape.geometry.verts), (-1, 3))
        indexList = np.reshape(np.array(shape.geometry.faces), (-1, 3))
        if(shape.geometry.materials):
            ifc_material = shape.geometry.materials[0]
            self.material = GlTFMaterial(rgb=[ifc_material.diffuse[0], ifc_material.diffuse[1], ifc_material.diffuse[2]],
                                         alpha=ifc_material.transparency if ifc_material.transparency else 0,
                                         metallicFactor=ifc_material.specularity if ifc_material.specularity else 1.)

        triangles = list()
        for index in indexList:
            triangle = []
            for i in range(0, 3):
                # We store each position for each triangles, as GLTF expect
                triangle.append(vertexList[index[i]])
            triangles.append(triangle)

        self.geom.triangles.append(triangles)

        self.set_box()

        return True

    def get_obj_id(self):
        return super().get_id()

    def set_obj_id(self, id):
        return super().set_id(id)</code></pre>
</details>
<h3>Ancestors</h3>
<ul class="hlist">
<li><a title="py3dtilers.Common.feature.Feature" href="../Common/feature.html#py3dtilers.Common.feature.Feature">Feature</a></li>
</ul>
<h3>Methods</h3>
<dl>
<dt id="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.computeCenter"><code class="name flex">
<span>def <span class="ident">computeCenter</span></span>(<span>self, pointList)</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def computeCenter(self, pointList):
    center = np.array([0.0, 0.0, 0.0])
    for point in pointList:
        center += np.array([point[0], point[1], 0])
    return center / len(pointList)</code></pre>
</details>
</dd>
<dt id="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.getIfcClasse"><code class="name flex">
<span>def <span class="ident">getIfcClasse</span></span>(<span>self)</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def getIfcClasse(self):
    return self.ifcClasse</code></pre>
</details>
</dd>
<dt id="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.getParentsInIfc"><code class="name flex">
<span>def <span class="ident">getParentsInIfc</span></span>(<span>self, ifcObject)</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def getParentsInIfc(self, ifcObject):
    self.parents = list()
    while(ifcObject):
        ifcParent = None
        if(hasattr(ifcObject, &#34;ContainedInStructure&#34;)):
            if(ifcObject.ContainedInStructure):
                ifcParent = ifcObject.ContainedInStructure[0].RelatingStructure
        elif(hasattr(ifcObject, &#34;Decomposes&#34;)):
            if(len(ifcObject.Decomposes) &gt; 0):
                ifcParent = ifcObject.Decomposes[0].RelatingObject

        if(ifcParent):
            self.parents.append({&#39;id&#39;: ifcParent.GlobalId, &#39;ifcClass&#39;: ifcParent.is_a()})
        ifcObject = ifcParent</code></pre>
</details>
</dd>
<dt id="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.get_obj_id"><code class="name flex">
<span>def <span class="ident">get_obj_id</span></span>(<span>self)</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def get_obj_id(self):
    return super().get_id()</code></pre>
</details>
</dd>
<dt id="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.hasGeom"><code class="name flex">
<span>def <span class="ident">hasGeom</span></span>(<span>self)</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def hasGeom(self):
    return self.has_geom</code></pre>
</details>
</dd>
<dt id="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.parse_geom"><code class="name flex">
<span>def <span class="ident">parse_geom</span></span>(<span>self, ifcObject)</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def parse_geom(self, ifcObject):
    if (not(ifcObject.Representation)):
        return False

    try:
        settings = geom.settings()
        settings.set(settings.USE_WORLD_COORDS, True)  # Translates and rotates the points to their world coordinates
        settings.set(settings.SEW_SHELLS, True)
        settings.set(settings.APPLY_DEFAULT_MATERIALS, False)
        shape = geom.create_shape(settings, ifcObject)
    except RuntimeError:
        logging.error(&#34;Error while creating geom with IfcOpenShell&#34;)
        return False

    vertexList = np.reshape(np.array(shape.geometry.verts), (-1, 3))
    indexList = np.reshape(np.array(shape.geometry.faces), (-1, 3))
    if(shape.geometry.materials):
        ifc_material = shape.geometry.materials[0]
        self.material = GlTFMaterial(rgb=[ifc_material.diffuse[0], ifc_material.diffuse[1], ifc_material.diffuse[2]],
                                     alpha=ifc_material.transparency if ifc_material.transparency else 0,
                                     metallicFactor=ifc_material.specularity if ifc_material.specularity else 1.)

    triangles = list()
    for index in indexList:
        triangle = []
        for i in range(0, 3):
            # We store each position for each triangles, as GLTF expect
            triangle.append(vertexList[index[i]])
        triangles.append(triangle)

    self.geom.triangles.append(triangles)

    self.set_box()

    return True</code></pre>
</details>
</dd>
<dt id="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.setBatchTableData"><code class="name flex">
<span>def <span class="ident">setBatchTableData</span></span>(<span>self, ifcObject, ifcGroup)</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def setBatchTableData(self, ifcObject, ifcGroup):
    properties = list()
    for prop in ifcObject.IsDefinedBy:
        if(hasattr(prop, &#39;RelatingPropertyDefinition&#39;)):
            if(prop.RelatingPropertyDefinition.is_a(&#39;IfcPropertySet&#39;)):
                props = list()
                props.append(prop.RelatingPropertyDefinition.Name)
                for propSet in prop.RelatingPropertyDefinition.HasProperties:
                    if(propSet.is_a(&#39;IfcPropertySingleValue&#39;)):
                        if(propSet.NominalValue):
                            props.append([propSet.Name, propSet.NominalValue.wrappedValue])
                properties.append(props)
    batch_table_data = {
        &#39;classe&#39;: self.ifcClass,
        &#39;group&#39;: ifcGroup,
        &#39;name&#39;: ifcObject.Name,
        &#39;properties&#39;: properties
    }
    super().set_batchtable_data(batch_table_data)</code></pre>
</details>
</dd>
<dt id="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.set_obj_id"><code class="name flex">
<span>def <span class="ident">set_obj_id</span></span>(<span>self, id)</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def set_obj_id(self, id):
    return super().set_id(id)</code></pre>
</details>
</dd>
</dl>
<h3>Inherited members</h3>
<ul class="hlist">
<li><code><b><a title="py3dtilers.Common.feature.Feature" href="../Common/feature.html#py3dtilers.Common.feature.Feature">Feature</a></b></code>:
<ul class="hlist">
<li><code><a title="py3dtilers.Common.feature.Feature.get_batchtable_data" href="../Common/feature.html#py3dtilers.Common.feature.Feature.get_batchtable_data">get_batchtable_data</a></code></li>
<li><code><a title="py3dtilers.Common.feature.Feature.get_bounding_volume_box" href="../Common/feature.html#py3dtilers.Common.feature.Feature.get_bounding_volume_box">get_bounding_volume_box</a></code></li>
<li><code><a title="py3dtilers.Common.feature.Feature.get_centroid" href="../Common/feature.html#py3dtilers.Common.feature.Feature.get_centroid">get_centroid</a></code></li>
<li><code><a title="py3dtilers.Common.feature.Feature.get_geom" href="../Common/feature.html#py3dtilers.Common.feature.Feature.get_geom">get_geom</a></code></li>
<li><code><a title="py3dtilers.Common.feature.Feature.get_geom_as_triangles" href="../Common/feature.html#py3dtilers.Common.feature.Feature.get_geom_as_triangles">get_geom_as_triangles</a></code></li>
<li><code><a title="py3dtilers.Common.feature.Feature.get_id" href="../Common/feature.html#py3dtilers.Common.feature.Feature.get_id">get_id</a></code></li>
<li><code><a title="py3dtilers.Common.feature.Feature.get_texture" href="../Common/feature.html#py3dtilers.Common.feature.Feature.get_texture">get_texture</a></code></li>
<li><code><a title="py3dtilers.Common.feature.Feature.has_texture" href="../Common/feature.html#py3dtilers.Common.feature.Feature.has_texture">has_texture</a></code></li>
<li><code><a title="py3dtilers.Common.feature.Feature.set_batchtable_data" href="../Common/feature.html#py3dtilers.Common.feature.Feature.set_batchtable_data">set_batchtable_data</a></code></li>
<li><code><a title="py3dtilers.Common.feature.Feature.set_box" href="../Common/feature.html#py3dtilers.Common.feature.Feature.set_box">set_box</a></code></li>
<li><code><a title="py3dtilers.Common.feature.Feature.set_id" href="../Common/feature.html#py3dtilers.Common.feature.Feature.set_id">set_id</a></code></li>
<li><code><a title="py3dtilers.Common.feature.Feature.set_texture" href="../Common/feature.html#py3dtilers.Common.feature.Feature.set_texture">set_texture</a></code></li>
<li><code><a title="py3dtilers.Common.feature.Feature.set_triangles" href="../Common/feature.html#py3dtilers.Common.feature.Feature.set_triangles">set_triangles</a></code></li>
</ul>
</li>
</ul>
</dd>
<dt id="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectsGeom"><code class="flex name class">
<span>class <span class="ident">IfcObjectsGeom</span></span>
<span>(</span><span>objs=None)</span>
</code></dt>
<dd>
<div class="desc"><p>A decorated list of FeatureList type objects.</p></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">class IfcObjectsGeom(FeatureList):
    &#34;&#34;&#34;
        A decorated list of FeatureList type objects.
    &#34;&#34;&#34;

    def __init__(self, objs=None):
        super().__init__(objs)

    @staticmethod
    def create_batch_table_extension(extension_name, ids, objects):
        if extension_name == &#34;batch_table_hierarchy&#34;:
            resulting_bth = BatchTableHierarchy()
            hierarchy = TreeWithChildrenAndParent()
            parents = dict()

            for obj in objects:
                resulting_bth.add_class(obj.ifcClass, {&#39;GUID&#39;})
                if(obj.parents):
                    hierarchy.addNodeToParent(obj.id, obj.parents[0][&#39;id&#39;])
                i = 0
                for parent in obj.parents:
                    hierarchy.addNodeToParent(obj.parents[i - 1][&#39;id&#39;], obj.parents[i][&#39;id&#39;])
                    if parent[&#39;id&#39;] not in parents:
                        parents[parent[&#39;id&#39;]] = parent
                        resulting_bth.add_class(parent[&#39;ifcClass&#39;], {&#39;GUID&#39;})
                    i = i + 1

            objectPosition = {}
            for i, (obj) in enumerate(objects):
                objectPosition[obj.id] = i
            for i, (parent) in enumerate(parents):
                objectPosition[parent] = i + len(objects)

            for obj in objects:
                resulting_bth.add_class_instance(
                    obj.ifcClass,
                    {
                        &#39;GUID&#39;: obj.id
                    },
                    [objectPosition[id_parent] for id_parent in hierarchy.getParents(obj.id)]
                )
            for parent in parents.items():
                resulting_bth.add_class_instance(
                    parent[1][&#34;ifcClass&#34;],
                    {
                        &#39;GUID&#39;: parent[1][&#34;id&#34;]
                    },
                    [objectPosition[id_parent] for id_parent in hierarchy.getParents(parent[1][&#34;id&#34;])]
                )

            return resulting_bth
        else:
            return None

    @staticmethod
    def retrievObjByType(path_to_file, with_BTH):
        &#34;&#34;&#34;
        :param path: a path to a directory

        :return: a list of Obj.
        &#34;&#34;&#34;
        ifc_file = ifcopenshell.open(path_to_file)

        elements = ifc_file.by_type(&#39;IfcElement&#39;)
        nb_element = str(len(elements))
        logging.info(nb_element + &#34; elements to parse&#34;)
        i = 1
        dictObjByType = dict()
        for element in elements:
            start_time = time.time()
            logging.info(str(i) + &#34; / &#34; + nb_element)
            logging.info(&#34;Parsing &#34; + element.GlobalId + &#34;, &#34; + element.is_a())
            obj = IfcObjectGeom(element, with_BTH=with_BTH)
            if(obj.hasGeom()):
                if not(element.is_a() in dictObjByType):
                    dictObjByType[element.is_a()] = IfcObjectsGeom()
                if(obj.material):
                    obj.material_index = dictObjByType[element.is_a()].get_material_index(obj.material)
                else:
                    obj.material_index = 0
                dictObjByType[element.is_a()].append(obj)
            logging.info(&#34;--- %s seconds ---&#34; % (time.time() - start_time))
            i = i + 1
        return dictObjByType

    @staticmethod
    def retrievObjByGroup(path_to_file):
        &#34;&#34;&#34;
        :param path: a path to a directory

        :return: a list of Obj.
        &#34;&#34;&#34;
        ifc_file = ifcopenshell.open(path_to_file)

        elements = ifc_file.by_type(&#39;IfcElement&#39;)
        nb_element = str(len(elements))
        logging.info(nb_element + &#34; elements to parse&#34;)

        groups = ifc_file.by_type(&#34;IFCRELASSIGNSTOGROUP&#34;)

        dictObjByGroup = dict()
        for group in groups:
            elements_in_group = list()
            for element in group.RelatedObjects:
                if(element.is_a(&#39;IfcElement&#39;)):
                    elements.remove(element)
                    obj = IfcObjectGeom(element, group.RelatingGroup.Name)
                    if(obj.hasGeom()):
                        elements_in_group.append(obj)
            dictObjByGroup[group.RelatingGroup.Name] = elements_in_group

        elements_not_in_group = list()
        for element in elements:
            obj = IfcObjectGeom(element)
            if(obj.hasGeom()):
                elements_not_in_group.append(obj)
        dictObjByGroup[&#34;None&#34;] = elements_not_in_group

        for key in dictObjByGroup.keys():
            dictObjByGroup[key] = IfcObjectsGeom(dictObjByGroup[key])

        return dictObjByGroup</code></pre>
</details>
<h3>Ancestors</h3>
<ul class="hlist">
<li><a title="py3dtilers.Common.feature.FeatureList" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList">FeatureList</a></li>
</ul>
<h3>Static methods</h3>
<dl>
<dt id="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectsGeom.retrievObjByGroup"><code class="name flex">
<span>def <span class="ident">retrievObjByGroup</span></span>(<span>path_to_file)</span>
</code></dt>
<dd>
<div class="desc"><p>:param path: a path to a directory</p>
<p>:return: a list of Obj.</p></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">@staticmethod
def retrievObjByGroup(path_to_file):
    &#34;&#34;&#34;
    :param path: a path to a directory

    :return: a list of Obj.
    &#34;&#34;&#34;
    ifc_file = ifcopenshell.open(path_to_file)

    elements = ifc_file.by_type(&#39;IfcElement&#39;)
    nb_element = str(len(elements))
    logging.info(nb_element + &#34; elements to parse&#34;)

    groups = ifc_file.by_type(&#34;IFCRELASSIGNSTOGROUP&#34;)

    dictObjByGroup = dict()
    for group in groups:
        elements_in_group = list()
        for element in group.RelatedObjects:
            if(element.is_a(&#39;IfcElement&#39;)):
                elements.remove(element)
                obj = IfcObjectGeom(element, group.RelatingGroup.Name)
                if(obj.hasGeom()):
                    elements_in_group.append(obj)
        dictObjByGroup[group.RelatingGroup.Name] = elements_in_group

    elements_not_in_group = list()
    for element in elements:
        obj = IfcObjectGeom(element)
        if(obj.hasGeom()):
            elements_not_in_group.append(obj)
    dictObjByGroup[&#34;None&#34;] = elements_not_in_group

    for key in dictObjByGroup.keys():
        dictObjByGroup[key] = IfcObjectsGeom(dictObjByGroup[key])

    return dictObjByGroup</code></pre>
</details>
</dd>
<dt id="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectsGeom.retrievObjByType"><code class="name flex">
<span>def <span class="ident">retrievObjByType</span></span>(<span>path_to_file, with_BTH)</span>
</code></dt>
<dd>
<div class="desc"><p>:param path: a path to a directory</p>
<p>:return: a list of Obj.</p></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">@staticmethod
def retrievObjByType(path_to_file, with_BTH):
    &#34;&#34;&#34;
    :param path: a path to a directory

    :return: a list of Obj.
    &#34;&#34;&#34;
    ifc_file = ifcopenshell.open(path_to_file)

    elements = ifc_file.by_type(&#39;IfcElement&#39;)
    nb_element = str(len(elements))
    logging.info(nb_element + &#34; elements to parse&#34;)
    i = 1
    dictObjByType = dict()
    for element in elements:
        start_time = time.time()
        logging.info(str(i) + &#34; / &#34; + nb_element)
        logging.info(&#34;Parsing &#34; + element.GlobalId + &#34;, &#34; + element.is_a())
        obj = IfcObjectGeom(element, with_BTH=with_BTH)
        if(obj.hasGeom()):
            if not(element.is_a() in dictObjByType):
                dictObjByType[element.is_a()] = IfcObjectsGeom()
            if(obj.material):
                obj.material_index = dictObjByType[element.is_a()].get_material_index(obj.material)
            else:
                obj.material_index = 0
            dictObjByType[element.is_a()].append(obj)
        logging.info(&#34;--- %s seconds ---&#34; % (time.time() - start_time))
        i = i + 1
    return dictObjByType</code></pre>
</details>
</dd>
</dl>
<h3>Inherited members</h3>
<ul class="hlist">
<li><code><b><a title="py3dtilers.Common.feature.FeatureList" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList">FeatureList</a></b></code>:
<ul class="hlist">
<li><code><a title="py3dtilers.Common.feature.FeatureList.add_material" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.add_material">add_material</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.add_materials" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.add_materials">add_materials</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.change_crs" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.change_crs">change_crs</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.create_batch_table_extension" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.create_batch_table_extension">create_batch_table_extension</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.create_bounding_volume_extension" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.create_bounding_volume_extension">create_bounding_volume_extension</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.delete_features_ref" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.delete_features_ref">delete_features_ref</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.get_centroid" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.get_centroid">get_centroid</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.get_color_config" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.get_color_config">get_color_config</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.get_features" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.get_features">get_features</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.get_material" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.get_material">get_material</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.get_material_index" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.get_material_index">get_material_index</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.get_textures" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.get_textures">get_textures</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.is_list_of_feature_list" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.is_list_of_feature_list">is_list_of_feature_list</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.is_material_registered" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.is_material_registered">is_material_registered</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.scale_features" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.scale_features">scale_features</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.set_color_config" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.set_color_config">set_color_config</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.set_features" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.set_features">set_features</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.set_features_geom" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.set_features_geom">set_features_geom</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.set_materials" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.set_materials">set_materials</a></code></li>
<li><code><a title="py3dtilers.Common.feature.FeatureList.translate_features" href="../Common/feature.html#py3dtilers.Common.feature.FeatureList.translate_features">translate_features</a></code></li>
</ul>
</li>
</ul>
</dd>
</dl>
</section>
</article>
<nav id="sidebar">
<h1>Index</h1>
<div class="toc">
<ul></ul>
</div>
<ul id="index">
<li><h3>Super-module</h3>
<ul>
<li><code><a title="py3dtilers.IfcTiler" href="index.html">py3dtilers.IfcTiler</a></code></li>
</ul>
</li>
<li><h3><a href="#header-classes">Classes</a></h3>
<ul>
<li>
<h4><code><a title="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom" href="#py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom">IfcObjectGeom</a></code></h4>
<ul class="two-column">
<li><code><a title="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.computeCenter" href="#py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.computeCenter">computeCenter</a></code></li>
<li><code><a title="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.getIfcClasse" href="#py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.getIfcClasse">getIfcClasse</a></code></li>
<li><code><a title="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.getParentsInIfc" href="#py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.getParentsInIfc">getParentsInIfc</a></code></li>
<li><code><a title="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.get_obj_id" href="#py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.get_obj_id">get_obj_id</a></code></li>
<li><code><a title="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.hasGeom" href="#py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.hasGeom">hasGeom</a></code></li>
<li><code><a title="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.parse_geom" href="#py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.parse_geom">parse_geom</a></code></li>
<li><code><a title="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.setBatchTableData" href="#py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.setBatchTableData">setBatchTableData</a></code></li>
<li><code><a title="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.set_obj_id" href="#py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectGeom.set_obj_id">set_obj_id</a></code></li>
</ul>
</li>
<li>
<h4><code><a title="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectsGeom" href="#py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectsGeom">IfcObjectsGeom</a></code></h4>
<ul class="">
<li><code><a title="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectsGeom.retrievObjByGroup" href="#py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectsGeom.retrievObjByGroup">retrievObjByGroup</a></code></li>
<li><code><a title="py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectsGeom.retrievObjByType" href="#py3dtilers.IfcTiler.ifcObjectGeom.IfcObjectsGeom.retrievObjByType">retrievObjByType</a></code></li>
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